92rs wiring help!!!
i have a 92 rs that i just converted to a 350 motor with a raptor tranny.its carburated and doesnt need the pcm. it was removed when i recieved the car. the car previosly had a 3.1/700r in it and was removed right before i got it. when it was removed they cut a big wiring harness the i believe went to the injectors a/c and other engine components i managed to find the coil and tach wire luckely the ediots didnt cut them too. i hooked up the engine and it runs great however my tach only worked for a few minutes then stoped. the other gauges dont work at all. ...do i need the pcm for the speedo to work? also my heater blower doesnt work can anyone toll me what color wires are the grounds? and what color wires i need to hook back up to help these things work.....thanks